108 lines
2.6 KiB
JavaScript
108 lines
2.6 KiB
JavaScript
//most (all at this time) of this code was written by Andrew Kelley
|
|
//licensed under the BSD license: see https://github.com/andrewrk/node-mv/blob/master/package.json
|
|
|
|
var fs = require('fs');
|
|
var ncp = require('ncp').ncp;
|
|
var path = require('path');
|
|
var rimraf = require('rimraf');
|
|
var mkdirp = require('mkdirp');
|
|
|
|
module.exports = mv;
|
|
|
|
function mv(source, dest, options, cb){
|
|
if (typeof options === 'function') {
|
|
cb = options;
|
|
options = {};
|
|
}
|
|
var shouldMkdirp = !!options.mkdirp;
|
|
var clobber = options.clobber !== false;
|
|
var limit = options.limit || 16;
|
|
|
|
if (shouldMkdirp) {
|
|
mkdirs();
|
|
} else {
|
|
doRename();
|
|
}
|
|
|
|
function mkdirs() {
|
|
mkdirp(path.dirname(dest), function(err) {
|
|
if (err) return cb(err);
|
|
doRename();
|
|
});
|
|
}
|
|
|
|
function doRename() {
|
|
if (clobber) {
|
|
fs.rename(source, dest, function(err) {
|
|
if (!err) return cb();
|
|
if (err.code !== 'EXDEV') return cb(err);
|
|
moveFileAcrossDevice(source, dest, clobber, limit, cb);
|
|
});
|
|
} else {
|
|
fs.link(source, dest, function(err) {
|
|
if (err) {
|
|
if (err.code === 'EXDEV') {
|
|
moveFileAcrossDevice(source, dest, clobber, limit, cb);
|
|
return;
|
|
}
|
|
if (err.code === 'EISDIR' || err.code === 'EPERM') {
|
|
moveDirAcrossDevice(source, dest, clobber, limit, cb);
|
|
return;
|
|
}
|
|
cb(err);
|
|
return;
|
|
}
|
|
fs.unlink(source, cb);
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
function moveFileAcrossDevice(source, dest, clobber, limit, cb) {
|
|
var outFlags = clobber ? 'w' : 'wx';
|
|
var ins = fs.createReadStream(source);
|
|
var outs = fs.createWriteStream(dest, {flags: outFlags});
|
|
ins.on('error', function(err){
|
|
ins.destroy();
|
|
outs.destroy();
|
|
outs.removeListener('close', onClose);
|
|
if (err.code === 'EISDIR' || err.code === 'EPERM') {
|
|
moveDirAcrossDevice(source, dest, clobber, limit, cb);
|
|
} else {
|
|
cb(err);
|
|
}
|
|
});
|
|
outs.on('error', function(err){
|
|
ins.destroy();
|
|
outs.destroy();
|
|
outs.removeListener('close', onClose);
|
|
cb(err);
|
|
});
|
|
outs.once('close', onClose);
|
|
ins.pipe(outs);
|
|
function onClose(){
|
|
fs.unlink(source, cb);
|
|
}
|
|
}
|
|
|
|
function moveDirAcrossDevice(source, dest, clobber, limit, cb) {
|
|
var options = {
|
|
stopOnErr: true,
|
|
clobber: false,
|
|
limit: limit,
|
|
};
|
|
if (clobber) {
|
|
rimraf(dest, function(err) {
|
|
if (err) return cb(err);
|
|
startNcp();
|
|
});
|
|
} else {
|
|
startNcp();
|
|
}
|
|
function startNcp() {
|
|
ncp(source, dest, options, function(errList) {
|
|
if (errList) return cb(errList[0]);
|
|
rimraf(source, cb);
|
|
});
|
|
}
|
|
} |